1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna [14]
3 years ago
15

What is the atomic mass of an element that has 6 protons, 7 neutrons, and 6 electrons?

Chemistry
1 answer:
GREYUIT [131]3 years ago
8 0

Answer:

13

Explanation:

proton plus neutron equal to atomic mass

You might be interested in
1. I am in group two period three. What element am I?<br> A Ti<br> B, C<br> C. Ca<br> D. WE
AysviL [449]

Answer:

Ca

Explanation:

5 0
3 years ago
Read 2 more answers
A student needs to prepare 100. mL of 0.612 M Cu(NO3)2 solution. What mass, in grams, of copper(II) nitrate should the student u
Temka [501]

Answer: 11.5 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution

Molarity=\frac{n\times 1000}{V_s}

where,

Morality = 0.612 M

n= moles of solute  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

0.612=\frac{n\times 1000}{100ml}

n=0.0612moles

Mass={\text {moles of solute }}{\times {\text {molar mass}}=0.0612moles\times 187.56g/mol=11.5g

Therefore, the mass of copper (II)nitrate required is 11.5 grams

3 0
3 years ago
Someone said that we can not use sulfric acid to prepare PbSO4 .
Delvig [45]

Answer:

A. we can use sulfuric acid to prepare PbSO4

7 0
3 years ago
Read 2 more answers
What is the term for the smallest bit into which a chemical substance can be divided and still have the properties of that subst
ziro4ka [17]

Answer:

Molecule

Explanation:

molecule of the substance.  You can break the molecule down further, into the atoms that make it up, but those don't have the properties of the original  'compound'.

Here's an example:

-- Sodium is a soft, slippery metal, that explodes when water touches it.

-- Chlorine is a poisonous green gas.

When an atom of Sodium and an atom of Chlorine combine, they make one molecule of a substance called "Sodium Chloride".  That's SALT !  It isn't green, it isn't a gas, it isn't poisonous, it isn't soft and slippery, and it doesn't explode when water touches it.

3 0
3 years ago
Will give brainliest
slamgirl [31]
I will help you with answering this question.
3 0
3 years ago
Other questions:
  • A solution was prepared by dissolving 40.0 g of kcl in 225 g of water. part a calculate the mass percent of kcl in the solution.
    5·2 answers
  • Aerosol cans contain a written warning not to subject the can to high temperatures or incinerate. Suppose an aerosol can is heat
    13·2 answers
  • Two 20.0-g ice cubes at –11.0 °C are placed into 205 g of water at 25.0 °C. Assuming no energy is transferred to or from the sur
    6·2 answers
  • ) Each of the following is a noncovalent interaction EXCEPT: A) a hydrogen bond. B) a carbon-hydrogen bond. C) the interaction b
    12·1 answer
  • 1. A sample of gold (Au) has a mass of 35.12 g.
    9·1 answer
  • Which of the following would not increase the rate of most reactions? A. Removing an inhibitor B. Lowering the concentration of
    8·2 answers
  • MgO + H2O = Mg(OH)2 is an example of a _____ chemical reaction.
    6·1 answer
  • Is it possible for a balloon with an initial pressure of 200.0 kPa to naturally expand to four times its initial volume when the
    7·1 answer
  • An ionic precipitation reaction takes place when aqueous solutions of potassium phosphate and aluminum nitrate are combined in a
    9·1 answer
  • Can you help me on this since im struggling on this since day 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!